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Gray/Portland, ME Local Forecast Office

14NM NE Portsmouth NH

Marine Point Forecast

[NOTICE]

Today
High: 80 °F
⇑S 10kt
< 1ft
Tonight
Low: 62 °F
S 15kt
< 1ft
Monday
High: 75 °F
Light Wind
< 1ft
Monday Night
Low: 57 °F
Light Wind
< 1ft
Tuesday
High: 70 °F
Light Wind
< 1ft
Tuesday Night
Low: 57 °F
Light Wind
< 1ft
Wednesday
High: 70 °F
⇑SSE 10kt
< 1ft
Wednesday Night
Low: 58 °F
Light Wind
< 1ft
Thursday
High: 70 °F
⇑SSE 15kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:43 am EDT Jun 14, 2026
Forecast Valid: 6am EDT Jun 14, 2026-6pm EDT Jun 20, 2026

View Nearby Observations

Detailed Forecast

Today

SW wind 5 to 8 kt becoming S 7 to 10 kt in the morning. Winds could gust as high as 20 kt. Increasing clouds. Seas 1 ft or less.

Tonight

S wind 10 to 15 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms before 3am, then rain and possibly a thunderstorm between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Seas 1 ft or less.

Monday

Variable winds 5 kt or less. A chance of showers, mainly before 8am. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Tuesday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming SSE 5 to 10 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.

Thursday

SSE wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Showers likely. Seas 1 ft or less.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.